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i BotanicalAbstracts monthly serial furnishing abstracts and citations publications inA of the international field of botany in its broadest sense. VOLUME IX AUGUST, 1921-OCTOBER, 1921 PUBLISHED MONTHLT UNDER THE DIRECTION OF THE BOARD OF CONTROL OF BOTANICAL ABSTRACTS, INC. A democratically constituted organization, u-ith members representing many societies interested in plants. BALTIMORE, U. S. A. WILLIAMS & WILKIXS COMPANY 1921 Copyright, 1921 Williams & VVilkins Company Baltimore, U. S. A. THE SOCIETIES NOW REPRESENTED AND THE MEMBERS OF THE BOARD OF CONTROL {The Members of the Executive Committee for 1921 are indicated by asterisks) American Association for theAdvancement Paleontological Society of America. of Science, Section G. Arthur Hollick, 61 Wall Street, New Brighton, New York.R. A. Harper, Columbia University, E. W. Berry, Johns Hopkins University,New York City. Baltimore, Maryland.B. E. Livingston, Johns Hopkins Uni- versity, Baltimore, Maryland. American Society of Agronomy. C. B. Hutchinson,Botanical Society of America, General Cornell University, Ithaca,Section. New York. C. A. Mooers, ofUniversity Tennessee,H. A. Gleason, New York Botanical Knoxville, Tennessee.Garden, New York City. Society for Horticultural*B. M. Davis, University of Michigan, Science. Ann Arbor, Michigan. Gardner,V. R. University of Missouri, Columbia,Botanical Society of America, Physiologi- Missouri. Wisconsin,cal Section. E. J. Kraus, of Madison, Wisconsin.Otis F. Curtis, Cornell University, Ithaca, New York. American Phytopathological Society. *B. M. DuGGAR (Chairman of the Board), Wisconsin,L. R. Jones, University of Missouri Louis,Botanical Garden, St. Madison, Wisconsin. Missouri. Cornell University,*Donald Reddick, Botanical Society America, Systematic Ithaca, York.of New Section. Society of American Foresters. Marshall A. Howe, New York Botani- Raphael Zon. U. S. Forest Service, Wash- cal Garden, New York City. ington, D. C. H. Babnhart, New York BotanicalJ. S. Illick, Pennsylvania DepartmentJ. Garden, York City.New of Forestry, Harrisburg, Pennsylvania. Botanical Society of America, Mycological American Conference of Pharmaceutical Section. Faculties. C. H. Kauffman, University Michi-of Heber W. Youngken, Philadelphia Col- gan, Ann Arbor, Michigan. lege of Pharmacy and Science, Phila- Bruce Fink, Miami University, Oxford, delphia, Pennsylvania. Ohio. HenryKraemer, Mt. Clemens, Michigan. American Society of Naturalists. Canadian Society' of Technical Agricultur- H. H. Bartlett, University of Michigan, ists. Ann Arbor, Michigan. W. P. Thompson, University of Sas- *J. A. Harris, Department of Genetics, katchewan, Saskatoon, Saskatchewan. Carnegie Institution, Cold SpringHar- B. T. Dickson, Macdonald College, bor, L. I., New York. Macdonald College, Quebec. Ecological Society of America. Royal Society of Canada. H. L. Shantz, U. S. Bureau of Plant F. E. Lloyd, McGill University, Mon- Industry, Washington, D. C. treal, Quebec. *Forrest Shreve, Desert Laboratory, J. H. Faull, University of Toronto, Carnegie Institution, Tucson, Arizona. Toronto, Ontario. At large. W. A. Orton, U. S. Bureau of Plant Industry, Washington, D. C. Ill \b Copyright, 1921 Williams & Wilkins Company Baltimore, U. S. A. REPRESENTEDTHE SOCIETIES NOW AND CONTROLTHE MEMBERS OF THE BOARD OF (The Members the Executive Committee for 19!l are indicated by asterisks)of Society of America.American Association for theAdvancement Paleontological Arthur Hollick, 61 Wall Street, Newof Science, Section G. Brighton, New York.University,R. A. Harper, Columbia W. Berry, Johns Hopkins University,E.New York City. Baltimore, Maryland.Johns Hopkins Uni-B. E. Livingston, Maryland.versity, Baltimore, American Society of Agronomy. C. B. Hutchinson, Cornell University,America, GeneralBotanical Society of Ithaca, New York.Section. C. A. MooERS, University of Tennessee,New York BotanicalH. A. Gleason, Knoxville, Tennessee.York City.Garden, New Society for Horticultural Science.University of Michigan,*B. M. Davis, Michigan.Ann Arbor, Gardner, University of Missouri,V. R. Columbia, Missouri.America, Physiologi-Botanical Society of E. Kraus, of Wisconsin,J.cal Section. Madison, Wisconsin. Otis F. Curtis, Cornell University, Ithaca, New York. American Phytopathological Society. *B. M. DuGQAR (Chair77}an the Board),of Jones, University of Wisconsin,L. R. Missouri Botanical Garden, St. Louis, Madison, Wisconsin. Missouri. *DoNALD Reddick, Comell University, Ithaca, New York.Botanical Society of America, Systematic Section. Society of American Foresters. Marshall A. Howe, New York Botani- Wash-Raphael Zon. U. S. Forest Service, cal Garden, New York City. ington, D. C. H. Barnhart, New York Botanical DepartmentJ. S. Illick, PennsylvaniaJ. Garden, New York City. Pennsylvania.of Forestry, Harrisburg, Botanical Society of America, Mycological of PharmaceuticalAmerican Conference Section. Faculties. C. H. Kauffman, University of Michi- Philadelphia Col-Heber W. Youngken, gan, Ann Arbor, Michigan. and Science, Phila-lege of Pharmacy Bruce Fink, Miami University, Oxford, delphia, Pennsylvania. Ohio. Clemens, Michigan.HenryKraemer, Mt. American Society of Naturalists. Technical Agricultur-Canadian Societj' of Michigan,H. H. Bartlett, University of ists. University of Sas-Ann Arbor, Michigan. W. P. Thompson, of Genetics, Saskatchewan.*J. A. Harris, Department katchewan, Saskatoon, Har- Macdonald College,Carnpgie Institution, Cold Spring B. T. Dickson, Quebec.bor, L. I., New York. Macdonald College, Ecological Society of America. Canada.Royal Society of University, Mon-Bureau of Plant F. E. Lloyd, McGillH. L. Shantz, U. S. Washington, D. C. treal, Quebec.Industry, of Toronto,Desert Laboratory, J. H. Faull, University*Forrest Shreve, Institution, Tucson, Arizona. Toronto, Ontario.Carnegie At large. D. C.Bureau of Plant Industry, Washington,W. A. Orton, U. S. Ill ——— —— BOARD OF EDITORS AND ASSISTANT EDITORS FOR V0LU:ME IX Editor-in-Chief, J. R. Schramm Cornell University, Ithaca, New York. EDITORS FOR SECTIONS Agronomy. C. V. Piper, U. S. Bureau of Morphology, Anatomy, and Histology of Plant Industry, Washington, D. C. Vascular Plants. E. W. Sinnott, Con- Assistant Editor, Mary R. Burr, U. S. necticut Agricultural College, Storrs, Bureau of Plant Industry, Washington, Connecticut. D. C. Morphology and Taxonomy of Algae. E. N. Bibliography, Biography, and History. Transeau, Ohio State University, Neil E. Stevens, U. S. Bureau of Plant Columbus, Ohio. Industry, Washington, D. C. Morphology and Taxonomy of Bryophytes. Botanical Education. C. Stuart Gager, Alexander W. Evans, Yale University, Brooklyn Botanic Garden, Brooklyn, New Haven, Connecticut. New York.—Assistant Editor, Alfred Morphology and Taxonomy of Fungi, GuNDERSEN, Brooklyn Botanic Garden, Lichens, Bacteria, and Myxomycetes. Brooklyn, New York. H. M. FiTZPATRiCK, Cornell University, UniversityCytology. Gilbert M. Smith, Ithaca, New York. of Wisconsin, Madison, Wisconsin. Paleobotany and Evolutionary History. Bryan, Uni-Assistant Editor, Geo. S. Edward W. Berry, The Johns Hopkins Wisconsin.versity ofWisconsin, Madison, University, Baltimore, Maryland. Geography. H. C.Ecology and Plant Pathology. G. H. Coons, Michigan Agri- of Chicago,Cowles, The University cultural College, East Lansing, Michi- —Assistant Editor, Geo.Chicago, Illinois. gan.—Assistant Editor, C. W. Bennett, ofD. Fuller, The Michigan Agricultural College, East Illinois. Lansing, Michigan. Forest Botany and Forestry. Raphael PharmaceuticalBotany andPharmacognosy. Forest Service, Washington, Heber W. Youngken, PhiladelphiaZoN, U. S. C.—Assistant Editor, J. V. Hofmann, College of Pharmacy and Science, Phila-D. Forest Service, Wind River Ejcperi- delphia, Pennsylvania.—AssistantU. S. Edi- ment Station, Stabler, Washington. tor, E. N. Gathercoal, 701 South Wood Street, Chicago, Illinois.Genetics. George H. Shull, Princeton Jersey.University, Princeton, New Physiology. B. M. Duggar, Missouri Kelly,Assistant Editor, J. P. Pennsyl- Botanical Garden, St. Louis, Missouri. College, Penn-vania State College, State Assistant Editor, Carroll W. Dodge, sylvania. Harvard University, Cambridge, Massa- Horticulture. H. Gourley, Ohio Agricul- chusetts.J. tural Experiment Station, Wooster, Ohio. Soil Science. J. Skinner,J. U. S. Bureau Assistant Editor, H. E. Knowlton, of Plant Industry, Washington,— D. C. West Virginia University, Morgantown, Assistant Editor, F. M. Schertz, U. S. Virginia. Bureau of Plant Industry, Washington, Publications. D. C.Miscellaneous, Unclassified Burton E. Livingston, The Johns Taxonomy of Vascular Plants. J. M. Baltimore, Marj'-Hopkins University, Greenman, Missouri Botanical Garden, Tre-land.—Assistant Editor, Sam F. St. Louis, Missouri.—Assistant Editor, Hopkins University,lease. The Johns E. B. Payson, University of Wyoming, Baltimore, Maryland. Laramie, Wyoming. BIBLIOGRAPHY COMMITTEE FOR 1921 Schramm, Chairman, Cornell University,J. R, Ithaca, New York H. O. BUCKMAN R. Hosmer W. H. Chandler L. Knudson A. J, Eames D. Reddick R. A. Emerson L. W. Sharp H. M. Fitzpatrick K. M.Wiegand R. S. Harris, Secretary IV
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